Lesson: 20V ESR Measuring with Ultrasound

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Objectives: 

This lesson uses a set of 5 CoderZ activities to show the operation and use of the Ultrasonic Sensor.  This sensor uses sound waves beyond the human detectable range (ultrasound) to measure the distance to objects.

1) Write code using Touch & Gyro sensors to move through the course.... notice how touching the red boxes reduces your score:

LEVEL-UP to Obstacle Detection II Pack
Cyber Robotics 101: Obstacle Detection II >> Mission 1 (Bad Containers) 
https://play.gocoderz.com/dashboard/#/project-editor/4582888

2) Follow the animated prompts to manually drive this course and use the HUD to see the Ultrasonic Sensor's distance measurements as you go:

Cyber Robotics 101: Obstacle Detection II >> Mission 2 (Meet the Ultrasonic Sensor) 
https://play.gocoderz.com/dashboard/#/project-editor/4582927

3) Follow the animated prompts to adjust the Wait until Ultrasonic Block settings to successfully reaching the target without touching the red container:

Cyber Robotics 101: Obstacle Detection II >> Mission 3 (Wait for Ultrasonic) 
https://play.gocoderz.com/dashboard/#/project-editor/4582993

4) Write your own code to drive the square course without touching any of the red containers:

Cyber Robotics 101: Obstacle Detection II >> Mission 4 (Red is the New Green) 
https://play.gocoderz.com/dashboard/#/project-editor/4583021

5) Finally, code to scan around and find the only green containers, then go touch them, and then head to the finish target:

Cyber Robotics 101: Obstacle Detection II >> Mission 5 (Sonar Circle) 
https://play.gocoderz.com/dashboard/#/project-editor/4580439

6) Answer these questions:

What does the Ultrasonic Sensor do? 
In the Wait until Ultrasonic Block, when do you use the "less-than" setting? 

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